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[asset pipeline] Correct CSS section and include Gem details 

Also added note about compress option, which was 
not mentioned anywhere and is required
This commit is contained in:
Richard Hulse 2011-07-17 20:22:01 +12:00
parent 602bac19e7
commit 5187264e19
1 changed files with 9 additions and 9 deletions
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18
railties/guides/source/asset_pipeline.textile
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@ -326,33 +326,32 @@ TODO: Apache instructions
h3. Customizing The Pipeline
h4. CSS
There is currently one option for processing CSS - SCSS. This Gem extends the CSS syntax and offers minification.
h4. CSS Compression
The following line will enable SCSS in you project.
There is currently one option for compressing CSS - YUI. This Gem extends the CSS syntax and offers minification.
The following line will enable YUI compression, and requires the +yui-compressor+ gem.
<erb>
config.assets.css_compressor = :scss
config.assets.css_compressor = :yui
</erb>
This option is for compression only and does not relate to the SCSS language extensions that apply when using the +.scss+ file extension on CSS assets.
The +config.assets.compress+ must be set to +true+ to enable CSS compression
h4. Javascript
There are three options available to process javascript - uglifier, closure and yui.
Possible options for Javascript compression are +:closure+, +:uglifier+ and +:yui+. These require the use of the +closure-compiler+, +uglifier+ or +yui-compressor+ gems respectively.
The default Gemfile includes "uglifier":https://github.com/lautis/uglifier. This gem wraps "UglifierJS":https://github.com/mishoo/UglifyJS (written for NodeJS) in Ruby. It compress your code by removing white spaces and other magical things like changing your if and else statements to ternary operators when possible.
TODO: Add detail about the other two
The following line will invoke uglifier for Javascript compression.
<erb>
config.assets.js_compressor = :uglifier
</erb>
The +config.assets.compress+ must be set to +true+ to enable Javascript compression
h4. Using your own compressor
@ -418,3 +417,4 @@ h3. Making Your Library or Gem a Pre-Processor
"You should be able to register [your gems] on "Tilt":Tilt and Sprockets will find them." - Josh
[Tilt]https://github.com/rtomayko/tilt